An electric fuel pump is a device used to power an automobile's engine by directing the fuel through electronic means. It is an alternative to manual fuel pump system and is considered to be a better use of technology with the function and operation of vehicles. An electric fuel pump is mounted inside the fuel tank and operated by the electrical systems of the vehicle. Electric fuel pump can deliver fuel at high pressure in order to meet the requirements of the engine.

1. Knowing about Electric Fuel Pumps

2. An electric fuel pump is a device used to power
an automobile's engine by directing the fuel
through electronic means. It is an alternative to
manual fuel pump system and is considered to be
a better use of technology with the function and
operation of vehicles. An electric fuel pump is
mounted inside the fuel tank and operated by the
electrical systems of the vehicle. Electric fuel
pump can deliver fuel at high pressure in order to
meet the requirements of the engine.

3. Types of electric fuel pumps
* Roller vane design pumps
* Roller vane pump drives metal rollers that are
fitted to a roller. This creates a vacuum that pulls
the fuel into the pump. The driven rollers also
push the fuel from the fuel pump with a pressure.
* Operation in roller vane pumps is a bit noisier.
* They can tolerate fuel contaminates.
* It is mostly used in heavy vehicles of marine,
agricultural, industrial and performance
applications.

4. * Gerotor design pumps
* It is a gear driven pump which uses an armature
to drive a relatively smaller gear that in turn
drives a larger outer gear. The gears are precise
and their operation is quite.
* The rotation of the gear creates vacuum to draw
fuel into the pump and contraction which directs
fuel out of the pump.
* Gerotor design pumps are used with poly port
fuel injection vehicles.
* They are vulnerable to fuel contamination.

5. * Turbine design pumps
* Turbine design pumps uses the armature similar
to that of a gerotor pump. The armature operates
the blades of the turbine in order to pump the fuel.
* These are mostly used in multi-port fuel
injection systems.
* These are sensitive to fuel contaminates as well.

6. How an electric fuel pump works?
* An electric fuel pump consists of a diaphragm
and valve structure and an electromagnetic switch
which pulls the diaphragm.
* The electromagnetic switch attracts an iron rod
which pulls the diaphragm down thus pulling
petrol into the chamber.
* When the diaphragm returns, the spring raises
the diaphragm which pulls the rod away from
contacts. Then the diaphragm and valve structure
shuts down so that the electromagnetic switch
pulls the rod and diaphragm down.

7. * Circulating fuel continuously
* The modern fuel delivery systems pump fuel
into the engine when required.
* A delivery system consists of series of pipes
from the tank to the engine and back again. An
electric fuel pump sends fuel through these pipes
to the engine.

8. Filtering of fuel and air
* Fuel and air are filtered before passing into
engine.
* A fuel filter is applied in the fuel line before the
fuel goes into the engine.
* A pump may be incorporated with a wire or
plastic gauge filter or a bowl to catch the dust
particles in the fuel.
* An air cleaner is applied at the air intake of
engine.

9. Electric fuel pumps were developed to overcome
few of the disadvantages of mechanical fuel
pumps. They showed an increase in efficiency
than that of the mechanical fuel pumps.

10. Airtex Fuel Delivery Systems is the leading
aftermarket supplier of mechanical and electric
fuel pumps and modular reservoir assemblies
(MRA). For over 50 years, the Airtex brand has
been the benchmark of fuel delivery and cooling
system components for leading companies in the
automotive aftermarket. If you are searching
either for an electric fuel pump or a mechanical
fuel pump, visit our website.